Year	Number of Firms
1992-01-01	1
1997-01-01	1
2002-01-01	2
2003-01-01	3
2004-01-01	1
2005-01-01	4
2006-01-01	1
2007-01-01	8
2008-01-01	10
2009-01-01	13
2010-01-01	16
2011-01-01	15
2012-01-01	15
2013-01-01	19
2014-01-01	17
2015-01-01	15
2016-01-01	17